作　　者： ; ; ; (杜颢）; (王姝）;

机构地区： 西华大学电气信息学院

出　　处： 《四川电力技术》 2010年第2期28-30,共3页

摘　　要： 配电网中经常因操作或短路而产生过电压,从而危害电气设备的绝缘安全。以35kV配电母线上的过电压监测数据为例,运用数理统计方法对三相对地操作过电压进行统计计算分析,得出操作过电压幅值倍数的概率密度分布。为设备绝缘配合设计提供有效地依据,具有一定工程意义。 Overvoltage is often generated by the operation or short -circuit fault in distribution network, thereby endangering the insulation safety of electrical equipment. Taking the overvoltage data monitored in 35 kV distribution bus for example, the theoretical analyses and calculations for three - phase switching overvoltage to earth are carried out using mathematical statistics, and the probability density distribution of switching overvoltage amplitude multiple is obtained, which can provide a effective basis for insulation coordination design for the equipment with a certain engineering significance.

关 键 词： 操作过电压 统计分析 绝缘配合

领　　域： [电气工程]